Position servo control for pneumatic actuator using high-speed switching valves
CAO Hui-fa1, TAO Guo-liang1, ZHOU Hong2 (1. The State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Hangzhou, China; 2. Festo (China) Ltd., Shanghai 310027, China)
In this paper, a pneumatic actuator position servo system is described, which controlled by a five-point switch PWM control method using high-speed switching valves. The switching hysteresis of switching valve is analyzed, and an improvement method is presented which can diminish the static error of the system effectively. The experimental results show that the pneumat- ic actuator position servo system can be implemented using high-speed switching valves fast and accurately.
【CateGory Index】： TH138